The materials on the study of content heavy metals and organochlorine pesticides in fish are presented. It has been established that level is influenced by territorial location pond production. Therefore, lead, cadmium mercury liver gonads carp was higher than permissible values for growing ponds located city limits near highways. DDT HCH were detected organs territories farming farms. Residual...

Wnt4(-/-) XX gonads display features normally associated with testis differentiation, suggesting that WNT4 actively represses elements of the male pathway during ovarian development. Here, we show that follistatin (Fst), which encodes a TGFbeta superfamily binding protein, is a downstream component of Wnt4 signaling. Fst inhibits formation of the XY-specific coelomic vessel in XX gonads. In add...

Considering that ionizing radiation effects are cumulative and the gonads are particularly sensitive to these effects, and also the clinical importance of pelvic radiographs in children, the excess of radiation exposure to the gonads must be avoided. The purpose of this study is to demonstrate the relevance of the correct use of gonad protection shields and to evaluate their use on the hip radi...

Betta fish are freshwater ornamental that very popular and have quite high economic value, but the reproductive process still depends on spawning season, so an increase in potential is needed. The experiment was conducted order to determine role of each induction Oocite development (Oodev) hormone diet betta female final maturation morphology gonads. Completely randomized design (CRD) with one ...

Abstract Stingrays are a resource that is vulnerable to overfishing and habitat degradation. The research was conducted obtain data information still lacking much needed for the utilization protection of stingrays, including; life history, stomach contents, nursery ground. study in October - November 2018 by exploratory, including taking stingrays trawling measuring conditions with Conductivity...

The SRY-related gene SOX9 is involved in the differentiation of Sertoli cells in male gonads of vertebrates with different kinds of sex determination. In the olive ridley Lepidochelys olivacea, a species with temperature sex determination (TSD), the SOX9 protein is expressed at stages 21-24 in medullary cells in gonads of embryos incubated at both male-(MPT) or female-promoting temperatures (FP...

Primordial germ cells (PGCs) are the founders of sperm or oocytes. PGCs migrate through the tissues of the embryos and colonize the gonads during development. However, the cytokines essential for colonization of the gonads by PGCs in mammals remain unclear. Stromal cell-derived factor-1 (SDF-1, also called PBSF and CXCL12) is a member of chemokines, a family of structurally related chemoattract...